CODEWITHSUNDEEP
iosobjective-ciphoneregexnsregularexpression
Bobj-C
Bobj-C

Reputation: 5426

NSRegular Expression Groups (matches)

I have the following string:

authmod=adobe&user=ibrahimk04&challenge=5Axn6g==&response=3uy8NkHDVLpt0HwT8PraZg==&opaque=KuAj5Q==

I am using the below Regex in order to extract ibrahimk04

@"(user)=((\\w*)\\&)"

but it is returning user=ibrahimk04&. why ? it should return array with 2 ranges. am I wrong ?

Upvotes: 1

Views: 61

Answers (2)

Hussain Shabbir
Hussain Shabbir

Reputation: 14995

Try like this:-

(?<=user=)\w*

Upvotes: 0

Avinash Raj
Avinash Raj

Reputation: 174696

Use lookaround assertions to match one or more word characters which are just after to user= and followed by a & symbol.

(?<=user=)\\w+(?=&)

OR

(?<=user=)\\w+

Explanation:

  • (?<=user=) Positive look-behind asserts that the characters which are going to be matched must be preceded by user=
  • \\w+ Matches one or more word characters.
  • (?=&) Asserts that the matched word characters must be followed by a & symbol.

Upvotes: 1

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